mirror of
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d089acb3bd
ForgeFlower is better than Spigots FernFlower at decompiling the source. However, in order to maintain the CraftBukkit patches, we must keep using spigots for the primary. However, for any file that we import on top of Spigots imported files there is nothing stopping us from using better decompiled files. So these changes will use ForgeFlower to maintain a better set of decomped files, so anything we add on top of Paper can start off in a better spot.
227 lines
8.8 KiB
Diff
227 lines
8.8 KiB
Diff
From f5d3a976a51d35831486560b52f70aba7285ba67 Mon Sep 17 00:00:00 2001
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From: Colin Godsey <crgodsey@gmail.com>
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Date: Wed, 8 Aug 2018 10:10:06 -0600
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Subject: [PATCH] Cache World Entity Type counts
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Optimizes mob spawning by keeping a count of entities by type
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldEntityList.java b/src/main/java/com/destroystokyo/paper/PaperWorldEntityList.java
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new file mode 100644
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index 0000000000..35104542c5
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldEntityList.java
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@@ -0,0 +1,121 @@
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+package com.destroystokyo.paper;
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+
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+import net.minecraft.server.Entity;
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+import net.minecraft.server.EntityInsentient;
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+import net.minecraft.server.EnumCreatureType;
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+import net.minecraft.server.IAnimal;
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+import net.minecraft.server.MinecraftServer;
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+import net.minecraft.server.World;
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+import net.minecraft.server.WorldServer;
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+
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+import java.util.ArrayList;
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+import java.util.Collection;
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+
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+public class PaperWorldEntityList extends ArrayList<Entity> {
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+
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+ private final WorldServer world;
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+ private final int[] entityCounts = new int[EnumCreatureType.values().length];
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+
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+
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+ public PaperWorldEntityList(World world) {
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+ this.world = (WorldServer) world;
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+ }
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+
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+ @Override
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+ public boolean addAll(Collection<? extends Entity> c) {
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+ for (Entity e : c) {
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+ updateEntityCount(e, 1);
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+ }
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+
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+ return super.addAll(c);
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+ }
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+
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+ @Override
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+ public boolean removeAll(Collection<?> c) {
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+ for (Object e : c) {
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+ if (e instanceof Entity && ((Entity) e).getWorld() == world) {
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+ updateEntityCount((Entity) e, -1);
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+ }
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+ }
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+
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+ return super.removeAll(c);
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+ }
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+
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+ @Override
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+ public boolean add(Entity e) {
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+ updateEntityCount(e, 1);
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+
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+ return super.add(e);
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+ }
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+
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+ @Override
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+ public Entity remove(int index) {
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+ guard();
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+ Entity entity = super.remove(index);
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+ if (entity != null) updateEntityCount(entity, -1);
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+ return entity;
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+ }
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+
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+ @Override
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+ public boolean remove(Object o) {
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+ guard();
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+ if (super.remove(o)) {
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+ updateEntityCount((Entity) o, -1);
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+ return true;
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+ }
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+ return false;
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+ }
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+
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+ private void guard() {
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+ if (world.guardEntityList) {
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+ throw new java.util.ConcurrentModificationException();
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+ }
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+ }
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+
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+ public int getCreatureCount(EnumCreatureType type) {
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+ return entityCounts[type.ordinal()];
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+ }
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+
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+ private void updateEntityCount(EnumCreatureType type, int amt) {
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+ int count = entityCounts[type.ordinal()];
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+
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+ count += amt;
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+
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+ if (count < 0) {
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+ MinecraftServer.LOGGER.error("Paper - Entity count cache has gone negative");
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+ count = 0;
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+ }
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+
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+ entityCounts[type.ordinal()] = count;
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+ }
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+
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+ public void updateEntityCount(Entity entity, int amt) {
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+ if (!(entity instanceof IAnimal)) return;
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+
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+ if (entity instanceof EntityInsentient) {
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+ EntityInsentient entityinsentient = (EntityInsentient) entity;
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+ if (amt > 0 && entityinsentient.isDespawnableByDefault() && entityinsentient.isPersistent()) {
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+ return;
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+ }
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+ }
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+ if (amt < 0) {
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+ if (!entity.hasBeenCounted) {
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+ return;
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+ }
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+ // Only remove once, we remove from if the entity list is guarded, but may be called later
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+ entity.hasBeenCounted = false;
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+ } else {
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+ if (entity.hasBeenCounted) {
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+ return;
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+ }
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+ entity.hasBeenCounted = true;
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+ }
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+
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+ for (EnumCreatureType type : EnumCreatureType.values()) {
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+ if (type.matches(entity)) {
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+ updateEntityCount(type, amt);
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+ break;
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+ }
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+ }
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
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index 4252e8c02a..2b1affd03c 100644
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--- a/src/main/java/net/minecraft/server/Entity.java
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+++ b/src/main/java/net/minecraft/server/Entity.java
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@@ -124,6 +124,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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private boolean az;
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public boolean dead;
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public boolean shouldBeRemoved; // Paper
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+ public boolean hasBeenCounted = false; // Paper
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public float width;
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public float length;
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public float J;
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diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
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index 141db48f16..56542d531a 100644
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--- a/src/main/java/net/minecraft/server/EntityInsentient.java
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+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
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@@ -615,6 +615,7 @@ public abstract class EntityInsentient extends EntityLiving {
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return true;
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}
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+ public boolean isDespawnableByDefault() { return isTypeNotPersistent(); } // Paper - sortof an obf helper, too annoying to change visibility here
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protected boolean isTypeNotPersistent() {
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return true;
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}
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diff --git a/src/main/java/net/minecraft/server/EnumCreatureType.java b/src/main/java/net/minecraft/server/EnumCreatureType.java
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index 8874a05be5..0af387c059 100644
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--- a/src/main/java/net/minecraft/server/EnumCreatureType.java
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+++ b/src/main/java/net/minecraft/server/EnumCreatureType.java
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@@ -18,6 +18,8 @@ public enum EnumCreatureType {
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this.h = flag1;
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}
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+ public boolean matches(Entity entity) { return innerClass().isAssignableFrom(entity.getClass()); } // Paper
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+ public Class<? extends IAnimal> innerClass() { return this.a(); } // Paper - OBFHELPER
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public Class<? extends IAnimal> a() {
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return this.e;
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}
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diff --git a/src/main/java/net/minecraft/server/SpawnerCreature.java b/src/main/java/net/minecraft/server/SpawnerCreature.java
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index 32808558bb..62b4c64f68 100644
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--- a/src/main/java/net/minecraft/server/SpawnerCreature.java
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+++ b/src/main/java/net/minecraft/server/SpawnerCreature.java
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@@ -114,7 +114,7 @@ public final class SpawnerCreature {
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if ((!enumcreaturetype.c() || flag1) && (enumcreaturetype.c() || flag) && (!enumcreaturetype.d() || flag2)) {
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k = limit * i / SpawnerCreature.b; // CraftBukkit - use per-world limits
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- int l1 = worldserver.a(enumcreaturetype.a(), k);
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+ int l1 = worldserver.entityList.getCreatureCount(enumcreaturetype); // Paper - entity count cache
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if (l1 <= k) {
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BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index f99cdf1003..c479828d49 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -50,7 +50,8 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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private static final EnumDirection[] a = EnumDirection.values();
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private int b = 63;
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// Spigot start - guard entity list from removals
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- public final List<Entity> entityList = new java.util.ArrayList<Entity>()
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+ public final com.destroystokyo.paper.PaperWorldEntityList entityList = new com.destroystokyo.paper.PaperWorldEntityList(this);
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+ /* // Paper start
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{
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@Override
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public Entity remove(int index)
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@@ -74,6 +75,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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}
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}
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};
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+ */ // Paper end
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// Spigot end
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protected final Set<Entity> g = com.google.common.collect.Sets.newHashSet(); public Set<Entity> getEntityUnloadQueue() { return g; };// Paper - OBFHELPER
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//public final List<TileEntity> tileEntityList = Lists.newArrayList(); // Paper - remove unused list
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@@ -143,7 +145,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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public final com.destroystokyo.paper.PaperWorldConfig paperConfig; // Paper
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public final co.aikar.timings.WorldTimingsHandler timings; // Paper
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- private boolean guardEntityList; // Spigot
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+ public boolean guardEntityList; // Spigot // Paper - public
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public static boolean haveWeSilencedAPhysicsCrash;
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public static String blockLocation;
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private org.spigotmc.TickLimiter entityLimiter;
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@@ -1174,6 +1176,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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this.getChunkAt(i, j).b(entity);
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}
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entity.shouldBeRemoved = true; // Paper
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+ entityList.updateEntityCount(entity, -1); // Paper
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if (!guardEntityList) { // Spigot - It will get removed after the tick if we are ticking // Paper - always remove from current chunk above
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// CraftBukkit start - Decrement loop variable field if we've already ticked this entity
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--
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2.18.0
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